What diseases in the 21st century can be called a global threat to the existence of life on earth?

Despite the high level of medicine in the modern world, there are still diseases that pose a serious threat to humanity, among them tuberculosis and AIDS can be distinguished. The danger of tuberculosis lies in the fact that it is transmitted by airborne droplets, as well as through food and through everyday life, although this is less common.

AIDS is the last stage in the development of HIV infection. HIV can be contracted through blood and sexual intercourse.

Therefore, it is important not to forget to be examined by doctors in order to find out about the infection in time.